Vise



Allg. 23, 1932. F, KUHENNE 1,872,755

VISE

Filed April 18. 1931 3 Sheets-Sheet 1 VISE Filed April 18, 1931 s sheets-sheet 2 5# Kfig@ Aug. 23, 1932. F. KUHENNE r 1,872,755

vIsE

Filed April 18, 1951 3 Sheets-Sheet 5 1 @may ff WM Patented Aug. 23, 1932 or onsr'nnau 1N WEsTFALEN,'GEnMANY, Assienon To THE FIRM FRITZ KUHENNE,

PATENT vorrica BROCKI-IAUS SOI-INE, F WESTFALEN, .G-IEIRIVIABTY vIsE Appiicatirqnqaled April 18', 19.31, serial N. 531,218, and in Germany october 21, 1929.

This invention relates to improvements in 1 5 upon a hollowvbasev adapted to be fiXed'to' the work-table and having a lever for lock-v ing theV vise in any angular position which may be given thereto by rotation.

The principal object of my invention is to devise a construction of a vise permitting it to fully maintain its rotary'character and to lock and unlock the vise in any desired angular position solely by a short rotation vof .said lever. i

According to' vmy invention I provide oblique surfaces at the under surface of the upper wall of the base, said oblique surfaces co-operating with the hand lever which preferably is likewise provided with oblique surfaces similar to said former surfaces.' This lever according to my invention is swingably mounted upon a stud extending from the under part of the vise into they base and passing through the wall of the latter. Locking of the vise in anydesired angular position yis effected bysaid lever which after'being properly rotated only al short distance will be pressed on` the one hand against the 'oblique surfaces at the upo per wall of the base and on the other hand against an abutment which'zi's provided at said stud.

Known constructions of rotatable vises had ordinarily been provided with locking means in the form of oblique surfaces at the'under part of the vise and .with a lever having similar oblique surfaces co-oper'ating with said former surfaces. In known constructions of rotatable vises, however, the 40 entire weight of the vise together with the work piece held therein had to besup'ported by said oblique surfaces. In consequence o the considerable` strain ordinarily imposed Y -upon said oblique surfaces the lat-ter .had been subject to considerable wear and actuation of the lever had been difficult, because during locking the vise .by said lever it had been'- necessary to' -always lift the Ventire weight of the vise and of the work piece held 5 therein. Furthermore, inknown constructions of this kind, when locking or unlocking t-he vise bymeans of the lever, the vise had to be kept in position by hand, because otherwise the vise wouldbe liableto rotate to-v gether withthe lever during rotation of the 55 latter. Y

The vise constructed according to my present invention isfree from this drawback and the locking means which comprisethe aforementioned oblique surfaces will be fully released from any strains due tothe weight of the v-ise and the work pieces held therein. According to my invention the under part. of the vise during locking the latter in anydesired angular position is, drawn downward towards the base and'. firmly connected therewith by the action of jamming.

Threaded nuts in conjunction with hand levers which had heretofore been used for drawing downward the under part of the vise towards the base are entirely unsuitable for solving the problems underlying my present invention, because, in the first place, said threaded nutsand levers do not warrant the possibility of free rotation of the vise and, in the second place, they do not permit locking the vise in every angular Yposition merely by a short rotation of a hand lever as is the case in the construction forming part of my present invention.

A further object of my invention consists in devising a locking mechanism for rotatable vises which permits locking of the: vise in any desired angular position, said lockinglmechanism being constructed especially with a view of attaining easy adjust- ,Y

' ment and, if necessary, easy replacement and interchangeability of all parts of the locking mechanism which'are subject to wear. For this purpose according to my invention the stud which is fast on the under part and 'eX- f tends through the wall of the base thereof is constructed in the form of threaded bolt, whilethe collar which is provided on said stud forms an abutment forsaid lever, said collar consisting of a'threaded nut or a further washer or plate adjacent to said nut.

In order to prevent any undesirable unlocking of the vise due to hammer blows or other vibrations, according to my invention said base and positioned intermediate the under part of said vise and said base permitting swinging of said lever around said bolt, and an oblique surface at the under part of the upper Vwall of said base, said oblique surface being co-operative with said lever.

2. A vise, comprising a hollow base, an under member rotatably mounted upon said base, a hand lever for locking said under member', a bolt passing through the wall of said base and positioned intermediate the under part of said vise and said base permitting swinging of said lever around said bolt, oblique surfaces at the under surface of the upper wall of said base, and further oblique surfaces on said hand lever adapted to co-operate with said former oblique surfaces. Y

3. A vise as specified by claim l, in which the bolt is provided with a thread, said bolt being associated with a collar adapted to form an abutment for the lever, said collar consistliong of a threaded nut co-operative with said olt.

4:. A vise as specified by claim 1, in which the bolt is provided with a thread, said bolt ybeing associated with a collar adapted Yto form an abutment for the lever, said collar consisting of a threaded nut co-operative with said bolt and a washer positioned on said threaded nut.

5. A vise as specified by claim l, in which the hand lever is made slightly resilient and provided with locking means permitting automatic locking and unlocking of said hand lever and therewith of said vise in a desired angular position, and corrugations provided at the base of the vise, said corrugations being adapted to co-operate with said lever.

6. A securing means for a tool, comprising a base upon one surface of which the tool is adapted to be seated, having an aperture therein, a stem secured to the tool and eX- tending through the said aperture, a lever having an aperture near one end, loosely fitting on the said stem, the said base having inclined portions on its opposite surface around the aperture, the lever having corresponding inclined portions adapted to engage those of the base, and a retaining member at such position on the stem beyond the lever that the stem is free to rotate in the base when the lever is positioned to cause the cooperating inclined portions to be disengaged, but that the said stem will be locked securely to the base when the lever is positioned to cause the said portions to become rmly engaged with one another, by the resulting wedging action.

7. A securing means for a tool, comprising a base upon one surface of which the tool is adapted to be seated, having an aperture therein, a stem secured to the tool and eX- tending through the said aperture, the said stem being provided with screw threads, a

lever having an aperture near one end, loose- 1y fitting on the said stem, a nut engaging the said screw threads beyond said lever and thus preventing the lever from coming off of the stem, the said base having inclined portions on its opposite surface around the aperture, the lever having corresponding inclined portions adapted to engage those of the base, and the nut being screwed up on the stem to such position that the stem is free to rotate in the base when the lever is positioned to cause the cooperating inclined portions to be disengaged, but that the said stem will be locked securely to the base when the lever is positioned to cause the said portions to become firmly engaged with one another, by the resulting wedging action.

In testimony whereof I afIiX my signature.

FRITZ KUHENNE. 

